Results 81 to 90 of about 8,198 (219)

A New Experimental Protocol for Assessing Hominoid Assisted Arboreal Bipedalism

American Journal of Biological Anthropology, Volume 189, Issue 1, January 2026.
A new experimental protocol for investigating arboreal bipedalism in hominoids was successfully used by all available age and sex classes of chimpanzees in the case study. This protocol identifies two forms of arboreal bipedalism: forward facing and sideways, and allows for the collection of gait parameter data for future comparative studies.
Victoria A. Lockwood, François Druelle, Alicia Blasi‐Toccacceli, Jean‐Pascal Guéry, Guillaume Daver   +4 more
wiley   +1 more source

Smart Ungulates: What Sheep and Goats' Performances in a Reversed‐Reward Contingency Task Tell Us About the Evolution of Cognitive Flexibility

Ecology and Evolution, Volume 16, Issue 1, January 2026.
This study shows that young goats outperform sheep in the reversed‐reward contingency task, which is a cognitive test requiring both inhibitory control and cognitive flexibility. The results highlight the importance of cognitive flexibility when solving this type of task, and suggest that the differences between both species may reflect social and ...
Laurie Castro, Raymond Nowak, Valérie Dufour   +2 more
wiley   +1 more source

Balancing Harvesting and Conservation: Demographic Responses of a Threatened Palm to Anthropogenic Disturbance

Ecology and Evolution, Volume 16, Issue 1, January 2026.
Nineteen years of demographic data reveal a consistent decline of Euterpe edulis in forest fragments, highlighting the species' vulnerability. While the population shows resilience to fruit harvesting, palm heart extraction leads to a demographic collapse.
Eduardo T. B. Mendes, Rita C. Q. Portela
wiley   +1 more source

Natural infection by Microsporum canis in a capuchin monkey

Ciência Rural
: This paper described a case of a capuchin monkey (Sapajus libidinosus) with non-pruritic skin lesions. During the physical examination, multifocal areas of alopecia with crusts, erythema and scaling compatible with dermatophytosis were reported on the ...
Stéphanie Machado Mota, Adriano Fernandes Ferreira, Thiago Lopes Nery, Roberto Citelli de Farias, Amanda Figueiredo Mangueira, Felisbina Luísa Queiroga   +5 more
doaj   +1 more source

Optimal foraging can drive emergent initiator‐follower dynamics in social groups

Oikos, Volume 2026, Issue 1, January 2026.
Deciding when and where to move is a challenge for group‐living animals as differences in preferences must be resolved for the group to maintain cohesion. In many species, consensus is reached through shared decision‐making, whereby group members initiate group movements by stopping foraging and making directed movements away from a feeding source. Yet,
Damien R. Farine, Grace H. Davis, Margaret C. Crofoot   +2 more
wiley   +1 more source

Taxonomic and sex differences in sagittal cresting among gracile and robust capuchin monkeys

Journal of Anatomy, Volume 248, Issue 1, Page 53-61, January 2026.
In this study, I show that there are interspecific differences in the frequency and pattern of sagittal cresting among six capuchin species. Four of the six species show sagittal cresting, with Cebus capucinus showing a different sagittal cresting pattern to that observed in three robust capuchin species. All four crested species show sexual dimorphism
Katharine L. Balolia
wiley   +1 more source

Wild capuchin monkeys use stones and sticks to access underground food

Scientific Reports
Primates employ different tools and techniques to overcome the challenges of obtaining underground food resources. Humans and chimpanzees are known to tackle this problem with stick tools and one population of capuchin monkeys habitually uses stone tools.
Tatiane Valença, Gabriela Oliveira Affonço, Tiago Falótico   +2 more
doaj   +1 more source

Morphology of the shoulder muscles in Sapajus apella (Primates: Cebidae) [PDF]

Biotemas, 2013
The study of nonhuman primates has been very important, due to the similarities with the human species. Many animal species, especially primates, have been used in medical and biological researches.
Mariana Oliveira Lima, Lucélia Gonçalves Vieira, Priscilla Rosa Queiroz Ribeiro, Gilmar da Cunha Sousa, Zenon Silva, Daniela Cristina de Oliveira Silva, Roseâmely Angélica de Carvalho Barros   +6 more
doaj  

Oral microbiota and their antibiotic susceptibility in free-living monkeys in Goiás State, Brazil: Repercussions for injuries in humans

Revista da Sociedade Brasileira de Medicina Tropical, 2019
INTRODUCTION: Goiás State, which is in the midwest region of Brazil, has several urban forests. This fact, along with the expansion of urban areas within the limits of Forest Conservation Units, increases the contact between humans and wildlife, such as
Elisângela de Albuquerque Sobreira, Carla Afonso da Silva Bitencout Braga, Sheila Canavese Rahal, Evandro Leão Ribeiro, Lara Stefânia Netto de Oliveira Leão Vasconcelos, Lilian Carla Carneiro, Carlos Roberto Teixeira, Camila Contin Diniz de Almeida, Vidal Haddad Júnior   +8 more
doaj   +1 more source

How illusory is the solitaire illusion? Assessing the degree of misperception of numerosity in adult humans [PDF]

, 2016
open3siopenAgrillo, Christian; Parrish, Audrey E.; Beran, Michael J.Agrillo, Christian; Parrish, Audrey E.; Beran, Michael ...
Abramson, Agrillo, Agrillo, Agrillo, Agrillo, Agrillo, Agrillo, Agrillo, Allik, Barbet, Benhar, Beran, Beran, Beran, Beran, Billino, Biro, Bisazza, Boysen, Dehaene, Ditz, Eagleman, Evans, Feng, Fraser, Frith, Gaetano, Ginsburg, Gori, Halberda, Halberda, Kelley, Kilian, Krusche, Miletto Petrazzini, Nakamura, Nieder, Nieder, Nieder, Parrish, Parrish, Parrish, Parron, Pepperberg, Pepperberg, Price, Revkin, Rosa Salva, Uller, Watanabe, Wertheimer   +50 more
core   +2 more sources